Walk into the Proctor Hill Road trailhead this month and you will see a new sign that wasn't there last fall. It names two stretches of the Jeff Smith Trail, the boardwalk section between the West Hollis Road trailhead and French Meadow Loop, and the bridge area between the Proctor Hill Road trailhead and Wood Duck Ponds Trail, and warns that both are open but can run slippery, muddy, and in places genuinely underwater. Nothing about Beaver Brook's 2,200 acres or its 35 miles of trails has shrunk. What's different is timing, and if you've hiked this land for years, timing is the one variable you haven't had to think about before.
That single sign is a small piece of a much larger story. Beaver Brook Association is in the middle of the biggest capital project in its 61-year history, and this particular fall, wet trail sections and an unfinished building are both true at once. Neither is permanent. But neither was true two years ago, and neither will look the same two years from now. If you're planning a hike, a dog walk, or a stop at the Fall Festival, it helps to know exactly what's temporary and what to route around.
What the Advisory Actually Covers
The flooding notice applies to two specific spots, not the network as a whole.
| Trail Segment | Located Between | Current Condition |
|---|---|---|
| Jeff Smith Trail, boardwalk section | West Hollis Road trailhead and French Meadow Loop | Open, but slippery, muddy, and sometimes underwater |
| Jeff Smith Trail, bridge area | Proctor Hill Road trailhead and Wood Duck Ponds Trail | Open, but unstable footing in wet spots |
Both sections remain accessible. Beaver Brook's language is a caution, not a closure, which matters if you were planning to avoid the property entirely this season. You don't need to. If you'd rather skip the advisory zones altogether, the association's other entrances, Brown Lane and Ridge Road near Maple Hill Farm, reach different parts of the 35-mile network without crossing either flagged stretch. That's useful if you're walking with a dog who doesn't love standing water, or if you're the kind of hiker who'd rather not test whether "significantly underwater" is an exaggeration.
The Same Site Is Also a Construction Zone
The flooding is weather. The other change at Beaver Brook is deliberate, and it's been building for three years.
On January 6, board members, staff, and donors gathered inside the historic Maple Hill barn to watch prefabricated walls go up for a new Environmental Education Center, the first phase of a $7.1 million campaign the organization calls Transforming Beaver Brook. The building itself was designed and fabricated offsite by Bensonwood, the same New England timber-frame builder behind the Monadnock Conservancy and the Grey Rocks Conservation Center at Newfound Lake, using a panelized system that lets a structure like this go up in about a week once the pieces arrive.
By April 2026, Bensonwood had completed installation. Executive Director Lindsay Jones told supporters the campaign had raised more than $3.5 million toward the $4.1 million Phase One goal, the largest fundraising effort in Beaver Brook's history. The urgency behind that number was explicit months earlier, when Jones explained to the Hollis-Brookline Rotary Club why the timeline couldn't slip:
"We had to get that foundation in before winter if we want to be ready for summer programs starting in June 2026."
That's the piece easy to miss if you only see the finished walls from the trail. The building went up fast because a New Hampshire winter doesn't wait for fundraising totals, and Beaver Brook's waitlists for camps and school programs didn't leave room to lose a season.
What's Actually Inside, and When It Opens
The new center isn't a visitor kiosk or a gift shop. It's two classrooms, a basement classroom that opens directly to the fields, and dedicated space for teachers to prep and store materials, replacing capacity Beaver Brook lost when an aging yurt used for programming was retired. Site work accompanying the building, parking, a new septic system, water, and a cistern and sprinkler system, is designed to support both this structure and future renovations to the historic farmhouse offices next door.
The structural work finished in the spring. Programming is targeted for June 2026, which means this fall's camps, homeschool science classes, and adult workshops are still running out of existing spaces while the new building gets finished inside. If you've been meaning to check out the Forest Preschool at Brown Lane Barn or one of the adult hiking or gardening workshops, you're not missing anything by going now. The expanded schedule shows up next summer, not this one.
Where the Two Stories Meet
Beaver Brook's Fall Festival lands on Saturday, September 26, at Maple Hill Farm, the same grounds where the wall-raising happened in January. It's free, and in past years it has drawn Beaver Brook's own animal programs alongside music, an artisan market, and demonstrations tied to the season. This year it happens with a nearly finished building standing where the old yurt used to be, a physical marker of how much has changed on that property since last September.
None of this is the kind of thing that shows up if you just pull a trail map. A map tells you where the paths go. It doesn't tell you that the bridge near Wood Duck Ponds is currently better attempted in boots than sneakers, or that the quiet construction site you noticed from Ridge Road last winter is the reason Beaver Brook will be running more camp sessions by next summer. Both facts came from paying attention to the same 2,200 acres over the course of one calendar year, not from a single visit.
That's really the point. Hollis residents already know Beaver Brook is there. What's worth knowing this particular fall is that it's mid-transition, wet in two specific places and structurally complete in one big one, and that both conditions will have resolved by the time next year's Fall Festival rolls around. Go now if you want to see it in this in-between state. Route around the boardwalk and the bridge if you'd rather not, and know that either way, the 35 miles of trails you've always walked are still open.
If you're weighing what it's actually like to live near land like this, day to day rather than as a line item on a listing, that's the kind of detail Lawrence Home Group pays attention to across Hollis, Amherst, Bedford, and Merrimack. Contact Us when you're ready to talk about what a specific street, or a specific trailhead, actually means for your daily life here.
